magazines full of ammo, along with a handwritten letter addressing the t.s.a. directly. his former classmates stunned by the news, remember him as an introvert, a loaner. >> he was like a shy guy. he also kept to himself, was always walking around by himself, didn't really talk to anybody at all. >> i'm just absolutely shocked. >> his former roommate paints a similar picture of the out of work motorcycle mechanic who recently moved to los angeles from a small new jersey town. >> i didn't have any issues with him or thinking. he was a really nice guy, a bit loaner, introverted, but nothing that i would ever, ever expect him to do something like this. >> the police chief in new jersey is speaking on behalf of the suspect's family. >> we don't know what happened out in l.a. we don't know and they really don't know, either. they want to, like i said last night, they want to turn the stones over and try to find out. they're very emotionally upset, the whole family.